C 821 Trochus incrassatus. Duj.
| 分類 | Animals: Mollusca: Mollusca Proper: Gasteropoda: |
| 年代 | Cenozoic Tertiary Miocene: |
| 産地 | Ponte-le Voy. |
| 文献 | Scientific Museum, Department of Science, University of Tokio, 1882: Miocene. Catalogue of the Specimens of Historical Geology. (Cenozoic.), pp. 1–13. Scientific Museum, Department of Science, University of Tokio. |
